Spherical Roller Bearings SKF 22211 E/C3

The SKF 22211 E/C3 angular contact roller bearing, measuring 55 × 100 × 25 mm, compensates for angular misalignment and accommodates high radial loads.

The 22211 E/C3 self-aligning roller bearing is an open roller bearing designed for demanding industrial applications. The double-row roller arrangement on a common hollow-spherical outer ring raceway allows for the compensation of misalignment and shaft deflection. Manufactured from standard rolling-bearing steel and fitted with a dimensionally stable sheet steel cage, this bearing is suitable for operating temperatures ranging from -30 to +200 degrees. The integrated lubrication groove with holes in the outer ring facilitates the supply of lubricant directly into the bearing interior.

In which applications is the 22211 E/C3 self-aligning roller bearing used?

This roller bearing is typically used in drives, gearboxes and industrial plant where high radial loads occur and elastic deformations of the shaft need to be compensated for. The design accommodates both static and dynamic angular misalignment between the inner and outer rings without causing increased edge wear on the rollers. Designers prefer to use this variant in supported shaft assemblies with longer spans or where additional axial forces in both directions need to be supported.

What are the advantages of the C3 bearing clearance and the lubrication groove?

The suffix C3 indicates a slightly increased radial clearance compared with the standard range. When mounted with a press fit or due to heating during operation, the inner ring expands. The increased radial clearance cushions this temperature and fit effect and prevents internal stress. Users can apply grease or oil precisely between the two roller rings via the circumferential groove and lubrication holes in the outer ring. With the open design, care must be taken to ensure the bearing housing is carefully sealed externally.